Sink



FIG. 1 is a perspective view of the sink of the present invention.

FIG. 2 is a front elevation of the sink of the present invention.

FIG. 3 is a rear elevation of the sink of the present invention.

FIG. 4 is a right side elevation of the sink of the present invention.

FIG. 5 is a left side elevation of the sink of the present invention.

FIG. 6 is a top view of the sink of the present invention; and,

FIG. 7 is a bottom view of the sink of the present invention. 

CLAIM The ornamental design for a sink, as shown and described. 